Alternatives to Prolific
Other User research and testing vendors we measure, sorted by how much they publish that Prolific does not. This is a comparison of disclosure, not of features or fitness.
12 shown of 22 that differ from Prolific on at least one criterion we measured for both. Public transparency score, not a product or security rating.
Prolific has 10 gaps in what we could measure: Data processing agreement, Subprocessor list, Data location stated, Status page with history, Certifications named, Uptime SLA with a figure, No third-party tracking before consent, security.txt (RFC 9116), Notice before subprocessors change, Named privacy contact. The column “publishes and Prolific does not” is the one that closes them.
| Vendor | Score | Publishes, and Prolific does not | Prolific publishes, and they do not | |
|---|---|---|---|---|
| Great Questiongreatquestion.co | 57/100 | 5 Subprocessor list, Data location stated, Certifications named, +2 | nothing | Compare |
| Attention Insightattentioninsight.com | 57/100 | 4 Data processing agreement, Data location stated, Certifications named, +1 | nothing | Compare |
| Sprigsprig.com | 52/100 | 4 Data processing agreement, Data location stated, Status page with history, +1 | 1 Public pricing | Compare |
| Ballparkballparkhq.com | 48/100 | 4 Data location stated, Status page with history, Certifications named, +1 | nothing | Compare |
| Graingrain.com | 48/100 | 4 Data location stated, Status page with history, Certifications named, +1 | nothing | Compare |
| Aureliusaureliuslab.com | 52/100 | 3 Subprocessor list, Data location stated, Notice before subprocessors change | nothing | Compare |
| Useberryuseberry.com | 43/100 | 3 Subprocessor list, Certifications named, Notice before subprocessors change | nothing | Compare |
| Heliohelio.app | 39/100 | 3 Subprocessor list, Data location stated, Named privacy contact | 1 HTTPS enforced with HSTS | Compare |
| UXArmyuxarmy.com | 39/100 | 3 Data location stated, Certifications named, Named privacy contact | nothing | Compare |
| Mazemaze.co | 22/100 | 3 Certifications named, security.txt (RFC 9116), Named privacy contact | 1 Public pricing | Compare |
| Userbrainuserbrain.com | 35/100 | 2 Data location stated, Named privacy contact | nothing | Compare |
| Loop11loop11.com | 30/100 | 2 Data processing agreement, Notice before subprocessors change | 1 HTTPS enforced with HSTS | Compare |
Only criteria we could measure for both are counted. Where we could measure one and not the other, the row is silent: that would be a statement about our measurement, not about either vendor. Every single result with its source is on the two profiles.